Question

1+2 =4 ?
how ????????????​

Answer 1

Answer:

Let,

» a = b

» a² = ab

» a² - b² = ab - b²

» (a - b) (a + b) = b (a - b)

» a + b = b

Now, let a = 1,

Since, b = a = 1

Hence,

» 1 + 1 = 1

i.e. 2 = 1 ... (1)

We know that,

2 + 2 = 4

from (1)

» 1 + 2 = 4